<?php // $Id: format.php,v 1.83.2.3 2008/12/10 06:05:27 dongsheng Exp $
	  // Display the whole course as "topics" made of of modules
	  // In fact, this is very similar to the "weeks" format, in that
	  // each "topic" is actually a week.  The main difference is that
	  // the dates aren't printed - it's just an aesthetic thing for
	  // courses that aren't so rigidly defined by time.
	  // Included from "view.php"
	  

	require_once($CFG->libdir.'/ajax/ajaxlib.php');
  
	$topic = optional_param('topic', -1, PARAM_INT);

	// Bounds for block widths
	// more flexible for theme designers taken from theme config.php
	$lmin = (empty($THEME->block_l_min_width)) ? 100 : $THEME->block_l_min_width;
	$lmax = (empty($THEME->block_l_max_width)) ? 210 : $THEME->block_l_max_width;
	$rmin = (empty($THEME->block_r_min_width)) ? 100 : $THEME->block_r_min_width;
	$rmax = (empty($THEME->block_r_max_width)) ? 210 : $THEME->block_r_max_width;

	define('BLOCK_L_MIN_WIDTH', $lmin);
	define('BLOCK_L_MAX_WIDTH', $lmax);
	define('BLOCK_R_MIN_WIDTH', $rmin);
	define('BLOCK_R_MAX_WIDTH', $rmax);

	$preferred_width_left  = bounded_number(BLOCK_L_MIN_WIDTH, blocks_preferred_width($pageblocks[BLOCK_POS_LEFT]),  
											BLOCK_L_MAX_WIDTH);
	$preferred_width_right = bounded_number(BLOCK_R_MIN_WIDTH, blocks_preferred_width($pageblocks[BLOCK_POS_RIGHT]), 
											BLOCK_R_MAX_WIDTH);

	if ($topic != -1) {
		$displaysection = course_set_display($course->id, $topic);
	} else {
		if (isset($USER->display[$course->id])) {	   // for admins, mostly
			$displaysection = $USER->display[$course->id];
		} else {
			$displaysection = course_set_display($course->id, 0);
		}
	}

	$context = get_context_instance(CONTEXT_COURSE, $course->id);

	if (($marker >=0) && has_capability('moodle/course:setcurrentsection', $context) && confirm_sesskey()) {
		$course->marker = $marker;
		if (! set_field("course", "marker", $marker, "id", $course->id)) {
			error("Could not mark that topic for this course");
		}
	}

	$streditsummary   = get_string('editsummary');
	$stradd		   = get_string('add');
	$stractivities	= get_string('activities');
	$strshowalltopics = get_string('showalltopics');
	$strtopic		 = get_string('topic');
	$strgroups		= get_string('groups');
	$strgroupmy	   = get_string('groupmy');
	$editing		  = $PAGE->user_is_editing();

	if ($editing) {
		$strstudents = moodle_strtolower($course->students);
		$strtopichide = get_string('topichide', '', $strstudents);
		$strtopicshow = get_string('topicshow', '', $strstudents);
		$strmarkthistopic = get_string('markthistopic');
		$strmarkedthistopic = get_string('markedthistopic');
		$strmoveup = get_string('moveup');
		$strmovedown = get_string('movedown');
	}


/// Layout the whole page as three big columns.
	echo '<table id="layout-table" cellspacing="0" summary="'.get_string('layouttable').'"><tr>';

/// The left column ...
	$lt = (empty($THEME->layouttable)) ? array('left', 'middle', 'right') : $THEME->layouttable;
	foreach ($lt as $column) {
		switch ($column) {
			case 'left':

	if (blocks_have_content($pageblocks, BLOCK_POS_LEFT) || $editing) {
		echo '<td style="width:'.$preferred_width_left.'px" id="left-column">';
		print_container_start();
		blocks_print_group($PAGE, $pageblocks, BLOCK_POS_LEFT);
		print_container_end();
		echo '</td>';
	}

			break;
			case 'middle':
/// Start main column
	echo '<td id="middle-column">';
	print_container_start();
	echo skip_main_destination();

	print_heading_block(get_string('topicoutline'), 'outline');

	echo '<table class="topics" width="100%" summary="'.get_string('layouttable').'">';

/// If currently moving a file then show the current clipboard
	if (ismoving($course->id)) {
		$stractivityclipboard = strip_tags(get_string('activityclipboard', '', addslashes($USER->activitycopyname)));
		$strcancel= get_string('cancel');
		echo '<tr class="clipboard">';
		echo '<td colspan="3">';
		echo $stractivityclipboard.'&nbsp;&nbsp;(<a href="mod.php?cancelcopy=true&amp;sesskey='.$USER->sesskey.'">'.$strcancel.'</a>)';
		echo '</td>';
		echo '</tr>';
	}

/// Print Section 0

	$section = 0;
	$thissection = $sections[$section];

	if ($thissection->summary or $thissection->sequence or isediting($course->id)) {
		echo '<tr id="section-0" class="section main">';
		echo '<td class="left side">&nbsp;</td>';
		echo '<td class="content">';
		
		echo '<div class="summary">';
		$summaryformatoptions->noclean = true;
		echo format_text($thissection->summary, FORMAT_HTML, $summaryformatoptions);

		if (isediting($course->id) && has_capability('moodle/course:update', get_context_instance(CONTEXT_COURSE, $course->id))) {
			echo '<a title="'.$streditsummary.'" '.
				 ' href="editsection.php?id='.$thissection->id.'"><img src="'.$CFG->pixpath.'/t/edit.gif" '.
				 ' alt="'.$streditsummary.'" /></a><br /><br />';
		}
		echo '</div>';

		print_section($course, $thissection, $mods, $modnamesused);

		if (isediting($course->id)) {
			print_section_add_menus($course, $section, $modnames);
		}

		echo '</td>';
		echo '<td class="right side">&nbsp;</td>';
		echo '</tr>';
		echo '<tr class="section separator"><td colspan="3" class="spacer"></td></tr>';
	}


/// Now all the normal modules by topic
/// Everything below uses "section" terminology - each "section" is a topic.

	$timenow = time();
	$section = 1;
	$sectionmenu = array();

	while ($section <= $course->numsections) {

		if (!empty($sections[$section])) {
			$thissection = $sections[$section];

		} else {
			unset($thissection);
			$thissection->course = $course->id;   // Create a new section structure
			$thissection->section = $section;
			$thissection->summary = '';
			$thissection->visible = 1;
			if (!$thissection->id = insert_record('course_sections', $thissection)) {
				notify('Error inserting new topic!');
			}
		}

		$showsection = (has_capability('moodle/course:viewhiddensections', $context) or $thissection->visible or !$course->hiddensections);

		if (!empty($displaysection) and $displaysection != $section) {
			if ($showsection) {
				$strsummary = strip_tags(format_string($thissection->summary,true));
				if (strlen($strsummary) < 57) {
					$strsummary = ' - '.$strsummary;
				} else {
					$strsummary = ' - '.substr($strsummary, 0, 60).'...';
				}
				$sectionmenu['topic='.$section] = s($section.$strsummary);
			}
			$section++;
			continue;
		}

		if ($showsection) {

			$currenttopic = ($course->marker == $section);

			$currenttext = '';
			if (!$thissection->visible) {
				$sectionstyle = ' hidden';
			} else if ($currenttopic) {
				$sectionstyle = ' current';
				$currenttext = get_accesshide(get_string('currenttopic','access'));
			} else {
				$sectionstyle = '';
			}

			echo '<tr id="section-'.$section.'" class="section main'.$sectionstyle.'">';
			echo '<td class="left side">'.$currenttext.$section.'</td>';

			echo '<td class="content">';
			if (!has_capability('moodle/course:viewhiddensections', $context) and !$thissection->visible) {   // Hidden for students
				echo get_string('notavailable');
			} else {
				echo '<div class="summary">';
				$summaryformatoptions->noclean = true;
				echo format_text($thissection->summary, FORMAT_HTML, $summaryformatoptions);

				if (isediting($course->id) && has_capability('moodle/course:update', get_context_instance(CONTEXT_COURSE, $course->id))) {
					echo ' <a title="'.$streditsummary.'" href="editsection.php?id='.$thissection->id.'">'.
						 '<img src="'.$CFG->pixpath.'/t/edit.gif" alt="'.$streditsummary.'" /></a><br /><br />';
				}
				echo '</div>';

				print_section($course, $thissection, $mods, $modnamesused);

				if (isediting($course->id)) {
					print_section_add_menus($course, $section, $modnames);
				}
			}
			echo '</td>';

			echo '<td class="right side">';
			if ($displaysection == $section) {	  // Show the zoom boxes
				echo '<a href="view.php?id='.$course->id.'&amp;topic=0#section-'.$section.'" title="'.$strshowalltopics.'">'.
					 '<img src="'.$CFG->pixpath.'/i/all.gif" alt="'.$strshowalltopics.'" /></a><br />';
			} else {
				$strshowonlytopic = get_string('showonlytopic', '', $section);
				echo '<a href="view.php?id='.$course->id.'&amp;topic='.$section.'" title="'.$strshowonlytopic.'">'.
					 '<img src="'.$CFG->pixpath.'/i/one.gif" alt="'.$strshowonlytopic.'" /></a><br />';
			}

			if (isediting($course->id) && has_capability('moodle/course:update', get_context_instance(CONTEXT_COURSE, $course->id))) {
				if ($course->marker == $section) {  // Show the "light globe" on/off
					echo '<a href="view.php?id='.$course->id.'&amp;marker=0&amp;sesskey='.$USER->sesskey.'#section-'.$section.'" title="'.$strmarkedthistopic.'">'.
						 '<img src="'.$CFG->pixpath.'/i/marked.gif" alt="'.$strmarkedthistopic.'" /></a><br />';
				} else {
					echo '<a href="view.php?id='.$course->id.'&amp;marker='.$section.'&amp;sesskey='.$USER->sesskey.'#section-'.$section.'" title="'.$strmarkthistopic.'">'.
						 '<img src="'.$CFG->pixpath.'/i/marker.gif" alt="'.$strmarkthistopic.'" /></a><br />';
				}

				if ($thissection->visible) {		// Show the hide/show eye
					echo '<a href="view.php?id='.$course->id.'&amp;hide='.$section.'&amp;sesskey='.$USER->sesskey.'#section-'.$section.'" title="'.$strtopichide.'">'.
						 '<img src="'.$CFG->pixpath.'/i/hide.gif" alt="'.$strtopichide.'" /></a><br />';
				} else {
					echo '<a href="view.php?id='.$course->id.'&amp;show='.$section.'&amp;sesskey='.$USER->sesskey.'#section-'.$section.'" title="'.$strtopicshow.'">'.
						 '<img src="'.$CFG->pixpath.'/i/show.gif" alt="'.$strtopicshow.'" /></a><br />';
				}

				if ($section > 1) {					   // Add a arrow to move section up
					echo '<a href="view.php?id='.$course->id.'&amp;random='.rand(1,10000).'&amp;section='.$section.'&amp;move=-1&amp;sesskey='.$USER->sesskey.'#section-'.($section-1).'" title="'.$strmoveup.'">'.
						 '<img src="'.$CFG->pixpath.'/t/up.gif" alt="'.$strmoveup.'" /></a><br />';
				}

				if ($section < $course->numsections) {	// Add a arrow to move section down
					echo '<a href="view.php?id='.$course->id.'&amp;random='.rand(1,10000).'&amp;section='.$section.'&amp;move=1&amp;sesskey='.$USER->sesskey.'#section-'.($section+1).'" title="'.$strmovedown.'">'.
						 '<img src="'.$CFG->pixpath.'/t/down.gif" alt="'.$strmovedown.'" /></a><br />';
				}

			}

			echo '</td></tr>';
			echo '<tr class="section separator"><td colspan="3" class="spacer"></td></tr>';
		}

		$section++;
	}
	echo '</table>';

	if (!empty($sectionmenu)) {
		echo '<div class="jumpmenu">';
		echo popup_form($CFG->wwwroot.'/course/view.php?id='.$course->id.'&amp;', $sectionmenu,
				   'sectionmenu', '', get_string('jumpto'), '', '', true);
		echo '</div>';
	}

	print_container_end();
	echo '</td>';

			break;
			case 'right':
	// The right column
	if (blocks_have_content($pageblocks, BLOCK_POS_RIGHT) || $editing) {
		echo '<td style="width:'.$preferred_width_right.'px" id="right-column">';
		print_container_start();
		blocks_print_group($PAGE, $pageblocks, BLOCK_POS_RIGHT);
		print_container_end();
		echo '</td>';
	}

			break;
		}
	}
	echo '</tr></table>';
	
?>
